From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932179AbWGGReW (ORCPT ); Fri, 7 Jul 2006 13:34:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932188AbWGGReW (ORCPT ); Fri, 7 Jul 2006 13:34:22 -0400 Received: from khc.piap.pl ([195.187.100.11]:31638 "EHLO khc.piap.pl") by vger.kernel.org with ESMTP id S932179AbWGGReW (ORCPT ); Fri, 7 Jul 2006 13:34:22 -0400 To: ric@emc.com Cc: Tomasz Torcz , Thomas Glanzmann , "Theodore Ts'o" , LKML Subject: Re: ext4 features References: <20060701163301.GB24570@cip.informatik.uni-erlangen.de> <20060701170729.GB8763@irc.pl> <20060701174716.GC24570@cip.informatik.uni-erlangen.de> <20060701181702.GC8763@irc.pl> <44AD286F.3030507@emc.com> <44AD4807.6090704@emc.com> From: Krzysztof Halasa Date: Fri, 07 Jul 2006 19:34:17 +0200 In-Reply-To: <44AD4807.6090704@emc.com> (Ric Wheeler's message of "Thu, 06 Jul 2006 13:27:35 -0400") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ric Wheeler writes: > The key is to keep the signature/checksum with the file - tripwire and > backup programs could do this (and even store it their own extended > attribute), but I think that it is more generically useful than that. I can't still see a sane way to do it. Yes, there might be some way for very special purposes but there is no solution for general use. > If you care enough about the data integrity of a file, having this > kind of optional validation on any open would be very useful. Given we can only do that for very specific purposes, I think the userspace is better suited. -- Krzysztof Halasa